#5B111B#5B111B

#5B111B is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.3% C 0.105 H 18.7°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#5B111B
RGB	rgb(91, 17, 27)
HSL	hsl(352, 69%, 21%)
HSV	hsv(352, 81%, 36%)
CMYK	cmyk(0%, 81.3%, 70.3%, 64.3%)
CIE-LAB	lab(18.82, 33.60, 14.20)
CIE-LCH	lch(18.82, 36.48, 22.91°)
OKLab	oklab(31.33% 0.0997 0.0338)
OKLCH	oklch(31.33% 0.105 18.7)
XYZ	xyz(4.7132, 2.7049, 1.3106)
Luminance	0.0270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B111B #115B51

analogous

#5B1140 #5B111B #5B2C11

triadic

#5B111B #1B5B11 #111B5B

tetradic

#5B111B #405B11 #115B51 #2C115B

square

#5B111B #405B11 #115B51 #2C115B

split-complementary

#5B111B #115B2C #11405B

monochromatic

#1A0508 #27070C #5B111B #8F1B2A #C2243A

Accessibility & contrast

On white

13.63

#5B111B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#5B111B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B111B

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B111B	#FFFFFF	#000000	##FFFFFF
##5B111B	1.00	13.63	1.54	13.63
#FFFFFF	13.63	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26241B

Deuteranopia (green-blind)

#393319

Tritanopia (blue-blind)

#650015

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b111b;
/* rgb */ color: rgb(91, 17, 27);
/* oklch */ color: oklch(31.3% 0.105 18.7);

Tailwind

colors: {
  custom: {
    50: '#8f5657',
    500: '#5b111b',
    950: '#000000',
  },
}

SCSS

$custom: #5b111b;
$custom-light: #8f5657;
$custom-dark: #000000;

JSON

{
  "hex": "#5b111b",
  "rgb": {
    "r": 91,
    "g": 17,
    "b": 27
  },
  "hsl": {
    "h": 351.892,
    "s": 68.519,
    "l": 21.176
  },
  "oklch": {
    "l": 0.31328,
    "c": 0.1053,
    "h": 18.7
  },
  "luminance": 0.02704
}

Semantic roles & 50–950 ramp

primary

#5B111B

secondary

#349487

accent

#EBD43C

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5B111B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →